139. Strictly, with reference to Figure 7-4, we might write "linear
evolution", not "linear, within-species, evolution."
since, as a species survives the slings and arrows of natural selection it is
likely to change and evolve linearly into a new species, defined by its members
having become, at some time-point, reproductively incompatible with members of
the extinct ancestral species (were they still around for a test cross).

161. "nearly homologous" not "homologous"

176. "Epilogue. In contrast" not "Epilogue.In
contrast"

217. "this is close to the location"
not "this is the location" [unfortunately
this error is carried forward into p. 259 of the second edition. DRF 2013]